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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

San Luis Rio Colorado (Smn) Threshold Days by Year (MXN00026086)

14 fixed thresholds counted per year at San Luis Rio Colorado (Smn) (MXN00026086): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Luis Rio Colorado (Smn) Thresholds

  • San Luis Rio Colorado (Smn): days with a maximum temperature at or above 30 C (86 F) in 44 years, most in 1950 with 300.
  • San Luis Rio Colorado (Smn): days with a maximum temperature at or above 35 C (95 F) in 44 years, most in 1950 with 215.
  • San Luis Rio Colorado (Smn): days with a maximum temperature at or above 40 C (104 F) in 44 years, most in 1978 with 136.
  • San Luis Rio Colorado (Smn): days with a maximum temperature at or above 90 F (32.2 C) in 44 years, most in 1950 with 245.
  • 14 fixed thresholds have at least one qualifying day at San Luis Rio Colorado (Smn).
44 years with a qualifying day
Days at or above 30 C (86 F) per year at San Luis Rio Colorado (Smn) Days per year at San Luis Rio Colorado (Smn) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 300 in 1950. 01002003001927: 2061928: 1761929: 2151930: 2241931: 2201932: 2211933: 2001935: 1771936: 2061937: 1961943: 2191950: 3001951: 2081952: 2031953: 2001955: 2001956: 2141957: 2081958: 2031959: 2221960: 2241961: 2281962: 1891963: 2251965: 1871966: 2151967: 1901968: 1931969: 1591970: 1771971: 1511972: 2181973: 1851974: 1821975: 1671976: 2091977: 2211978: 2011979: 2131980: 2061981: 2351982: 2091983: 2141984: 210192719321943195519601966197119761981
Days per year at San Luis Rio Colorado (Smn) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 300 in 1950.
Days at or above 30 C (86 F) per year at San Luis Rio Colorado (Smn)
YearDaysDecade average
1927206199
1928176199
1929215199
1930224206.3
1931220206.3
1932221206.3
1933200206.3
1935177206.3
1936206206.3
1937196206.3
1943219219
1950300217.6
1951208217.6
1952203217.6
1953200217.6
1955200217.6
1956214217.6
1957208217.6
1958203217.6
1959222217.6
1960224201.1
1961228201.1
1962189201.1
1963225201.1
1965187201.1
1966215201.1
1967190201.1
1968193201.1
1969159201.1
1970177192.4
1971151192.4
1972218192.4
1973185192.4
1974182192.4
1975167192.4
1976209192.4
1977221192.4
1978201192.4
1979213192.4
1980206214.8
1981235214.8
1982209214.8
1983214214.8
1984210214.8
First to last qualifying date each year at San Luis Rio Colorado (Smn) For each year, a bar from the first to the last day at San Luis Rio Colorado (Smn) meeting 30 C (86 F). 1927: 22 February 1927 to 20 November 19271928: 29 February 1928 to 12 November 19281929: 24 February 1929 to 20 November 19291930: 7 February 1930 to 14 November 19301931: 2 March 1931 to 7 November 19311932: 27 February 1932 to 21 November 19321933: 3 March 1933 to 28 November 19331935: 19 February 1935 to 18 October 19351936: 4 March 1936 to 27 October 19361937: 10 March 1937 to 2 November 19371943: 7 January 1943 to 20 November 19431950: 4 February 1950 to 31 December 19501951: 2 January 1951 to 9 November 19511952: 26 March 1952 to 6 November 19521953: 6 February 1953 to 13 November 19531955: 8 March 1955 to 10 November 19551956: 3 March 1956 to 13 November 19561957: 12 February 1957 to 27 October 19571958: 11 April 1958 to 23 November 19581959: 2 March 1959 to 21 November 19591960: 5 March 1960 to 4 November 19601961: 23 February 1961 to 8 November 19611962: 26 March 1962 to 2 December 19621963: 2 February 1963 to 22 December 19631965: 22 February 1965 to 9 November 19651966: 9 March 1966 to 3 November 19661967: 16 March 1967 to 15 November 19671968: 25 February 1968 to 29 October 19681969: 19 March 1969 to 1 November 19691970: 17 March 1970 to 19 October 19701971: 14 February 1971 to 14 October 19711972: 27 February 1972 to 17 October 19721973: 6 April 1973 to 12 November 19731974: 15 March 1974 to 22 October 19741975: 4 March 1975 to 16 November 19751976: 28 February 1976 to 10 November 19761977: 15 February 1977 to 26 November 19771978: 25 February 1978 to 9 November 19781979: 13 February 1979 to 4 November 19791980: 27 February 1980 to 29 November 19801981: 16 February 1981 to 24 November 19811982: 17 February 1982 to 5 November 19821983: 18 February 1983 to 12 November 19831984: 1 March 1984 to 6 November 198419271933195119581965197119771983JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Luis Rio Colorado (Smn) meeting 30 C (86 F).
First to last qualifying date each year at San Luis Rio Colorado (Smn)
YearFirst dateLast date
19271927-02-221927-11-20
19281928-02-291928-11-12
19291929-02-241929-11-20
19301930-02-071930-11-14
19311931-03-021931-11-07
19321932-02-271932-11-21
19331933-03-031933-11-28
19351935-02-191935-10-18
19361936-03-041936-10-27
19371937-03-101937-11-02
19431943-01-071943-11-20
19501950-02-041950-12-31
19511951-01-021951-11-09
19521952-03-261952-11-06
19531953-02-061953-11-13
19551955-03-081955-11-10
19561956-03-031956-11-13
19571957-02-121957-10-27
19581958-04-111958-11-23
19591959-03-021959-11-21
19601960-03-051960-11-04
19611961-02-231961-11-08
19621962-03-261962-12-02
19631963-02-021963-12-22
19651965-02-221965-11-09
19661966-03-091966-11-03
19671967-03-161967-11-15
19681968-02-251968-10-29
19691969-03-191969-11-01
19701970-03-171970-10-19
19711971-02-141971-10-14
19721972-02-271972-10-17
19731973-04-061973-11-12
19741974-03-151974-10-22
19751975-03-041975-11-16
19761976-02-281976-11-10
19771977-02-151977-11-26
19781978-02-251978-11-09
19791979-02-131979-11-04
19801980-02-271980-11-29
19811981-02-161981-11-24
19821982-02-171982-11-05
19831983-02-181983-11-12
19841984-03-011984-11-06

Every Fixed Threshold

Fixed thresholds at San Luis Rio Colorado (Smn)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days443001950210
35 C (95 F): Days442151950160
40 C (104 F): Days441361978109
45 C (113 F): Days3960198123
50 C (122 F): Days41019331
90 F (32.2 C): Days442451950178
100 F (37.8 C): Days441521978135
110 F (43.3 C): Days4479198150
120 F (48.9 C): Days111719331
0 C (32 F): Frost days (min323419314
20 C (68 F): Tropical nights (min441431974124
25 C (77 F): Days with min4493193674
10 mm (0.39 in): Days with 10 mm or more rain33519271
25 mm (0.98 in): Days with 25 mm or more rain8219271

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1927.

Download the Data

  • Data for San Luis Rio Colorado (Smn) threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).